Lorraine FlintAlan FlintJames ThorneRyan Boynton2017Updated dataset: California Basin Characterization Model Downscaled Climate and Hydrology/Historical California Basin Characterization Model Downscaled Climate and HydrologynetCDFReston, VAU.S. Geological Surveyhttps://dx.doi.org/10.1186/2192-1709-2-25Lorraine FlintAlan FlintJames ThorneRyan Boynton2013Fine-scale hydrologic modeling for regional landscape applications: the California Basin Characterization Model development and performanceScientific ArticleBerlin, GermanySpringer Naturedoi:10.1186/2192-1709-2-25The California Basin Characterization Model (CA-BCM 2014) dataset provides historical and projected climate and hydrologic surfaces for the region that encompasses the state of California and all the streams that flow into it (California hydrologic region ). The CA-BCM 2014 applies a monthly regional water-balance model to simulate hydrologic responses to climate at the spatial resolution of a 270-m grid. The model has been calibrated using a total of 159 relatively unimpaired watersheds for the California region. The historical data is based on 800m PRISM data spatially downscaled to 270 m using the gradient-inverse distance squared approach (GIDS), and the projected climate surfaces include five CMIP-3 (GFDL, PCM, MIROC3_2, CSIRO, GISS_AOM) and nine CMIP-5 (MIROC5, MIROC , GISS, MRI, MPI, CCSM4, IPSL, CNRM, FGOALS) General Circulation Models under a range of emission scenarios or representative concentration pathways (RCPs) for a total of 18 futures that have been statistically downscaled using BCSD to 800 m and further downscaled using GIDS to 270 m for model application. The BCM approach uses a regional water balance model based on this high resolution precipitation and temperature as well as elevation, geology, and soils to produce surfaces for the following variables: precipitation, air temperature, April 1st snowpack, recharge, runoff, potential evapotranspiration (PET), actual evapotranspiration, and climatic water deficit, a parameter that is calculated as PET minus actual evapotranspiration. The following data are available in this archive: Raw, monthly model output for historical and future periods. Projected data is available for the following GCM and emission scenario or RCP combinations: GFDL-B1, GFDL-A2 PCM-B1, PCM-A2 MIROC3_2-A2 CSIRO-A1B GISS_AOM-A1B, MIROC5-RCP2.6, MIROC-RCP4.5, MIROC-RCP6.0, MIROC-RCP8.5 GISS-RCP2.6, MRI-RCP2.6, MPI- RCP4.5, CCSM4-RCP8.5, IPSL-RCP8.5, CNRM-RCP8.5, FGOALS-RCP8.5. Data variables: Actual evapotranspiration - water available between wilting point and field capacity, mm (aet); Climatic water deficit - Potential minus actual evapotranspiration, mm (cwd); Maximum monthly temperature, degrees C - (tmx); Minimum monthly temperature, degrees C - (tmn); Potential evapotranspiration - Water that could evaporate or transpire from plants if available, mm (pet); Recharge - Amount of water that penetrates below the root zone, mm (rch); Runoff - Amount of water that becomes stream flow, mm (run); Precipitation, mm - (ppt). Model inputs include: precipitation, air temperature, and potential evapotranspiration. Model outputs are: actual evapotranspiration, climatic water deficit, April snow pack, recharge and runoff. Note that another archive, hosted by the California Climate Commons contains various climatological summaries of these data. That archive can be found at: http://climate.calcommons.org/. Original historical (1895-2010) and future (2006-2100) datasets can be found at: https://cida.usgs.gov/thredds/CA-BCM-Catalog.htmlData were developed to model hydrologic responses to climate at a fine scale spatial resolution and to simulate water resources at local, watershed, and regional scales.2010100120160930ground conditionCompleteAs needed-124.71679687362-113.9062499990543.13274186521132.361033737162geospatial dataBasin Characterization ModelPrecipitationMaximum temperatureMinimum temperatureClimatic water deficitPotential evapotranspirationActual evapotranspirationApril snowpackRechargeRunoffGridded meteorological dataGridded hydrological dataCaliforniaCalifornianonenoneLorraine E FlintPACIFIC REGIONmailing and physical6000 J Street Placer HallSacramentoCA95819United States916-278-3223lflint@usgs.govNo formal attribute accuracy tests were conductedNo formal logical accuracy tests were conductedData set is considered complete for the information presented, as described in the abstract. Water balance calculations are not performed in locations mapped as water bodies and results in cells with no data. Users are advised to read the rest of the metadata record carefully for additional details and proper use of this data set.No formal positional accuracy tests were conductedNo formal positional accuracy tests were conductedLorraine Flint2013California Basin Characterization Model Downscaled Climate and Hydrologyascii grid fileshttps://cida.usgs.gov/thredds/CA-BCM-Catalog.htmlCenter for Integrated Data Analyticshttps://cida.usgs.gov/thredds/CA-BCM-Catalog.htmlRaster grids2010100120160930ground conditionBCMModel ouptutModel output grids (.asc) were converted to netCDF format using the "Raster to NetCDF" tool in ArcGIS (version 10.5).201704RasterAlbers Conical Equal Area34.040.5-120.00.00.0-4000000.0coordinate pair270.0270.0METERSD_North_American_1983GRS_19806378137.0298.257222101Historical California Basin Characterization Model Downscaled Climate and HydrologyClimate and model outputsBasin Characterization Model, 2014Actual Evapotranspiration (aet)Water available between wilting point and field capacity.USGS Basin Characterization Model, 201401110.43millimeters (mm)Climatic Water Deficit (cwd)The amount of water by which potential evapotranspiration (PET) exceeds actual evapotranspiration (AET).USGS Basin Characterization Model, 201401712.9millimeters (mm)April 1st Snowpack (pck)Snow pack accumulation at April 1 for the water year.USGS Basin Characterization Model, 201405000millimeters (mm)Potential Evapotranspiration (pet)Water that could evaporate or transpire from plants if available.USGS Basin Characterization Model, 2014412.41679.1millimeters (mm)Precipitation (ppt)Any product of the condensation of atmospheric water vapor that falls under gravity.USGS Basin Characterization Model, 201419.784553.1millimeters (mm)Recharge (rch)Amount of water that penetrates below the root zone.USGS Basin Characterization Model, 201403039.4millimeters (mm)Runoff (run)Amount of water that becomes stream flow.USGS Basin Characterization Model, 201403039.4millimeters (mm)Minimum Air Temperature (tmn)Minimum temperature value recorded for that period.USGS Basin Characterization Model, 2014-8.7419.78degrees Celsius (C)Maximum Air Temperature (tmx)Maximum temperature value recorded for that period.USGS Basin Characterization Model, 20142.833.75degrees Celsius (C)Lorraine E FlintPACIFIC REGIONmailing and physical6000 J Street Placer HallSacramentoCA95819United States916-278-3223lflint@usgs.gov"Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty."netCDF files (.nc) can be displayed and manipulated by many freely available and commercial or licensed software packages: (https://www.unidata.ucar.edu/software/netcdf/software.html).20170518Lorraine E FlintPACIFIC REGIONmailing and physical6000 J Street Placer HallSacramentoCA95819United States916-278-3223lflint@usgs.govContent Standard for Digital Geospatial MetadataFGDC-STD-001-1998